Refrigerating apparatus



Jan. 8, 1929.

R. R. STITT REFRIGERATING APPARATUS Filed May 1, 1924 2 Sheets-Sheet .Jan. 8, 1929'.

R. R. STITT REFRIGERATING APPARATUS Filed May 1, 1924 2 Sheets-Sheet 2 Pascae P. 55:78

Patented Jan. 8, 1929.

UNITED STATES PATENT OFFICE.

ROSCOE R. STITT, OF DETROIT, MICHIGAN ASSIGNOR TO STITT REFRIGERATION COM PANY, OF DETROIT, MICHIGAN,

A CORPORATION OF MICHIGAN.

BEFRIGERATING APPARATUS.

Application filed May 1,

This invention relates to a refrigerator apparatus and more particularly pertains to the assembly of the parts whereby a more eflicient operation of the machine is had.

It is the object of the present invention to assemble the condenser in such a way that a fan maybe mounted and driven for directing air currents in two directions, for cooling the condensing coils and the compressor. This arrangement of parts results in an easy assembly as a unit so that the same may utilize a minimum amount of floor area. This is a highly important item, because where the refrigerating apparatus is used in small apartments or flats the question of space is a determinin factor. Also my arrangement has a decide advantage of more efiiciently cooling the working parts and houses the fan which ordinarily rotates at high speed to prevent anyone from accidently getting in the way of the revolving blades.

In the drawings: Fig. 1 elevational view of my refrigerating apparatus.

Fig. 2 1s a section on the line 2-2 of Fig. 1, showing the condenser and the fan housed therein.

Fig. 3 is an enlarged detailed sectional view showing the condenser construction.

C designates the compressor which may be of a standard construction, although I have here shown a compressor described and claimed in mHopending application Serial No. 710,230. e source of power here shown is a motor M, which is adapted to be driven and is connected up with the compressor so as to operate the same. The motor drive 1 shaft a, is connected to the crank shaft 6 of the compressor through a suitable speed re ducer 0. However, the position of this speed reducer is immaterial and if the source of power were at a distant point and transmitting :to the compressor through a belt drive,

it would not be necessary to incorporate a speed reducer in the apparatus. I locate a condenser, designated as a whole as d, between the source o'f power and the compressor. This condenser consists of a top header 6 and a lower header f, and-the semicircular pipes 9 connect the upper and lower headers. -The spiral fins h are soldered or otherwise. secured to the pipes g, which serve as the condensing coils. The purpose of these fins is to provide a large area for cooling purposes. As shown in Fig. 2,-the condenser is 1924. Serial N0. 710,229.

dentally coming in contact with the fan" which rotates at a high velocity. The'blades of the fan are inclined sli htly but they direct the larger portion of the air currents radially past the condensing coils, and the remaining portion of the air is directed transversely to the first mentioned air currents and directed onto the compressor housing. In this way the fan serves a doublepurpose in that it directs air currents onto the condens ng coils and onto the compressor directly;

Such an assembly of the fan and condenser has a big advantage over the ordinary assem-' bly as the air currents directed to the compressor coils strike directly against the same and the whole coil surface is exposed to the cooling air currents directed thereon. In addition, the fan directs 'an independent current of air against the compressor so that the compressor is cooled directly and not indirectly as is the case with the usual construction which blows the air first against the condenser and then against the compressor.

In Fig. 1 a complete circulating path of the refrigerating system is seen wherein the compressed gas is forced through the exhaust port of the compressor into the conduit m, into the top header of the condenser where it is condensed into a liquid. This cooling liquid or refrigerant is then conducted tothe refrigerator n through the conduit 0, where it absorbs heat and becomes gasified and is then conducted back to the compressor through the conduit p.

What I claim is:

1. In a refrigerating apparatus, the combi- I versely to the radial air currents, and directly onto the compressor.

2. in arefrigereting apparatus, the comhination of a compressor unit, condenser coils forming e condenser unit anoi a'singie means for creating and directing a, current of air in one direction towards the compressor unit, and a second and separate current of air in another direction towards the condenser unit.

3. In :1 refrigerating apparatus, the combination of a motor, a compressor and con denser coils 211i comp-actiy arranged with the condenser coils disposed between the motor enci compressor to form a compact assembly,

ROSCOE- R. STITT. 

